Actors Sandra Bullock and George Clooney attend the Opening Ceremony And 'Gravity' Premiere during the 70th Venice International Film Festival at the Palazzo del Cinema on August 28, 2013 in Venice, Italy. (Photo by Pascal Le Segretain/Getty Images)

Actress Sophie Kennedy Clark attends the Opening Ceremony And 'Gravity' Premiere during the 70th Venice International Film Festival at the Palazzo del Cinema on August 28, 2013 in Venice, Italy. (Photo by Pascal Le Segretain/Getty Images)

Marina Ripa di Meana attends the Opening Ceremony And 'Gravity' Premiere during the 70th Venice International Film Festival at the Palazzo del Cinema on August 28, 2013 in Venice, Italy. (Photo by Andreas Rentz/Getty Images)

Actor George Clooney attends the Opening Ceremony And 'Gravity' Premiere during the 70th Venice International Film Festival at the Palazzo del Cinema on August 28, 2013 in Venice, Italy. (Photo by Andreas Rentz/Getty Images)

Jury member Carrie Fisher attends the Opening Ceremony And 'Gravity' Premiere during the 70th Venice International Film Festival at the Palazzo del Cinema on August 28, 2013 in Venice, Italy. (Photo by Ian Gavan/Getty Images)

Natalia Borges and Lorenzo Tonetti attend the Opening Ceremony And 'Gravity' Premiere during the 70th Venice International Film Festival at the Palazzo del Cinema on August 28, 2013 in Venice, Italy. (Photo by Pascal Le Segretain/Getty Images)

Actress Sandra Bullock attends the Opening Ceremony And 'Gravity' Premiere during the 70th Venice International Film Festival at the Palazzo del Cinema on August 28, 2013 in Venice, Italy. (Photo by Ian Gavan/Getty Images)

Moran Atias attends the Opening Ceremony And 'Gravity' Premiere during the 70th Venice International Film Festival at the Palazzo del Cinema on August 28, 2013 in Venice, Italy. (Photo by Ian Gavan/Getty Images)

Actress Sandra Bullock attends the Opening Ceremony And 'Gravity' Premiere during the 70th Venice International Film Festival at the Palazzo del Cinema on August 28, 2013 in Venice, Italy. (Photo by Ian Gavan/Getty Images)

Sheherazade Goldsmith, director Alfonso Cuaron with their children, screenwriter Jonas Cuaron with his wife Eireann Harper and their son attend the Opening Ceremony And 'Gravity' Premiere during the 70th Venice International Film Festival at the Palazzo del Cinema on August 28, 2013 in Venice, Italy. (Photo by Pascal Le Segretain/Getty Images)

Actress Sandra Bullock attends the Opening Ceremony And 'Gravity' Premiere during the 70th Venice International Film Festival at the Palazzo del Cinema on August 28, 2013 in Venice, Italy. (Photo by Andreas Rentz/Getty Images)

Jury member Ryuichi Sakamoto attends the Opening Ceremony And 'Gravity' Premiere during the 70th Venice International Film Festival at the Palazzo del Cinema on August 28, 2013 in Venice, Italy. (Photo by Ian Gavan/Getty Images)

Jury member Virginie Ledoyen attends the Opening Ceremony And 'Gravity' Premiere during the 70th Venice International Film Festival at the Palazzo del Cinema on August 28, 2013 in Venice, Italy. (Photo by Ian Gavan/Getty Images)

Fiammetta Cicogna and Tommy Chiabra attend the Opening Ceremony And 'Gravity' Premiere during the 70th Venice International Film Festival at the Palazzo del Cinema on August 28, 2013 in Venice, Italy. (Photo by Andreas Rentz/Getty Images)

Liliana Matthaeus attends the Opening Ceremony And 'Gravity' Premiere during the 70th Venice International Film Festival at the Palazzo del Cinema on August 28, 2013 in Venice, Italy. (Photo by Pascal Le Segretain/Getty Images)

Actress Isabelle Adriani attends the Opening Ceremony And 'Gravity' Premiere during the 70th Venice International Film Festival at the Palazzo del Cinema on August 28, 2013 in Venice, Italy. (Photo by Pascal Le Segretain/Getty Images)

Yi Zhou attends the Opening Ceremony And 'Gravity' Premiere during the 70th Venice International Film Festival at the Palazzo del Cinema on August 28, 2013 in Venice, Italy. (Photo by Ian Gavan/Getty Images)